WAS JESUS ALWAYS GOD?
An involved answer is: Jesus as Lord Yahvael or Lord Yahweh, In His first presence, is God, the Father, (Matthew 6:9 KJV), being an Archangel elect (Thess. 4:16 KJV), going back to the time of the "Bright and Morning Star" (Rev. 22:16 KJV) which means: Bright as in the "Brightest" being the leader (of the Morning Star Angels, Job 38:7 Morning Stars being angels called sons of God.) and Morning Star, as in first star out, which symbolically represents the first Universe...as a Star world system.
DID JESUS BECOME GOD AFTER THE RESURRECTION?
It is written in the Bible that Jesus Christ became perfect through the things He suffered thus becoming the author of eternal salvation (Hebrews 5:8-9 KJV) and obviously, this transition including the Resurrection (Hebrews 12:2 KJV). Jesus in His First Presence was already God but He did after the Resurrection become the author of eternal salvation. Prior to this before the fall of the angels a salvage mission was not needed.